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tatiyna
3 years ago
7

N a chemical reaction the ______of reactants and products are always equal.

Chemistry
1 answer:
Marina86 [1]3 years ago
3 0

Answer:

mass

Explanation:

As given by the law of conservation of mass. Hopes this helps!

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Two students are working together to build two models. Both models will represent the molecular structure of sodium bicarbonate,
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Altogether for both models; two red jellybeans, two white jellybeans, two black jellybeans and six blue jellybeans.

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Explanation:

Sodium bicarbonate, NaHCO₃ is a compound composed of one atom of sodium, one atom of hydrogen, one atom of carbon and three atoms of oxygen.

Since red jellybeans represent sodium atoms, white jellybeans represent hydrogen atoms, black jellybeans represent carbon atoms and blue jellybeans represent oxygen atoms, each of the two students will require the following number of each jellybean for their model of sodium carbonate: One red jellybean, one white jellybean, one black jellybean and three blue jellybeans.

Altogether for both models; two red jellybeans, two white jellybeans, two black jellybeans and six blue jellybeans.

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A ______ in medicine is a form of scientific argumentation in which evidence is used to rule out claims and support the best con
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Answer:   The independent variable is the type of metal being used.

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___________________________________________

Explanation:

___________________________________________

The "independent variable", which is plotted on the "x-axis" (horizontal axis), is the variable that can be "controlled/manipulated".  In this case, this would be the type of metal chosen.

The "dependent variable" , which is plotted on the "y-axis" (vertical axis) is the "obtained value/measurement/result" (that "cannot be controlled/manipulated").

In this case, the "density", which is the "measured value" that corresponds to the selected "meal", is the "dependent variable".

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Hope this helpful to you!

   Wishing you well!

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